http://www.lintcode.com/en/problem/find-peak-element-ii/ 二分查找! 1classSolution {2public:3/**4* @param A: An integer matrix5* @return: The index of the peak6*/7vector<int> findPeakII(vector<vector<int> >A) {8//write your code here9vector<int>res;10intleft =0, right = ...
leetcode 162 Find Peak Element(二分法) A peak element is an element that is greater than its neighbors. Given an input array wherenum[i] ≠ num[i+1], find a peak element and return its index. The array may contain multiple peaks, in that case return the index to any one of the pe...
LeetCode 162. Find Peak Element(二分) 题目 题意:一个数组,相邻的元素不相等,让你找出这个数组的驼峰,驼峰就是这个元素比相邻的元素都大。 题解:二分查找,如果你发现某个元素比左边相邻的元素小,那么左边一定存在驼峰,同理,右边也是。通过这个规律就可以二分了。 class Solution { public: int ...
A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], find a peak element and return its index. The array may contain multiple peaks, in that case return the index to any one of the peaks is fine. You may imagine that nu...
题目链接:https://leetcode.com/problems/find-peak-element/题目: A peak element is an element that is greater than its neighbors. num[i] ≠ num[i+1], find a peak element and return its index. The array may contain multiple peaks, in that case return the index to any one of the peak...
A peak element is an element that is greater than its neighbors.Given an input array nums, where nums[i] ≠ nums[i+1], find a peak element and return its index.The array may contain multiple peaks, in that case return the index to any one of the peaks is fine....
Can you solve this real interview question? Find Peak Element - A peak element is an element that is strictly greater than its neighbors. Given a 0-indexed integer array nums, find a peak element, and return its index. If the array contains multiple pea
这种找Peak Element的首先想到的是binary search, 因为有更优的时间复杂度,否则brute forceO(n)的方法太直接了。 binary search的方法就是比较当前element与邻居,至于左邻居还是右邻居都可以,只要一致就行。不断缩小范围,最后锁定peak element. 这种类似题也有很多Follow up, 比如先增后减的数组怎么找指定元素,甚至...
LeetCode: 162. Find Peak Element LeetCode: 162. Find Peak Element 又是一道加了锁,不能做的题。 只好做 162 咯。 题目描述 A peak element is an element that is greater than its neighbors. Given an input array nums, where nums[i] ≠ nums[i+1], find a peak el......
LeetCode 162. Find Peak Element 简介:给定一个输入数组 nums,其中 nums[i] ≠ nums[i+1],找到峰值元素并返回其索引。数组可能包含多个峰值,在这种情况下,返回任何一个峰值所在位置即可。 Description A peak element is an element that is greater than its neighbors....